inefficacy Hear it!

inefficacy definition

in·ef·fi·cacy (in ef′i kə sē)

noun

lack of efficacy; inability to produce the desired effect

Etymology: LL inefficacia

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

Comments
Improve this definition.
Do you have more to add? Share your linguistic knowledge or observation.
/Register to save your comments.